JPS63159868A - Developing method - Google Patents

Developing method

Info

Publication number
JPS63159868A
JPS63159868A JP61309446A JP30944686A JPS63159868A JP S63159868 A JPS63159868 A JP S63159868A JP 61309446 A JP61309446 A JP 61309446A JP 30944686 A JP30944686 A JP 30944686A JP S63159868 A JPS63159868 A JP S63159868A
Authority
JP
Japan
Prior art keywords
magnetic field
tangential direction
sleeve
adjacent part
developer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP61309446A
Other languages
Japanese (ja)
Other versions
JP2531651B2 (en
Inventor
Yuji Sakami
Katsumi Kurematsu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP61309446A priority Critical patent/JP2531651B2/en
Publication of JPS63159868A publication Critical patent/JPS63159868A/en
Application granted granted Critical
Publication of JP2531651B2 publication Critical patent/JP2531651B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles

Abstract

PURPOSE:To obtain an image having picture quality by allowing two maximum values of the intensity of a magnetic field in the tangential direction on the surface of a developer carrying body to exist by inserting and holding a developer and the most adjacent part of a latent image carrying body between them, and setting the magnitude of the minimum value of a magnetic field in the tangential direction of the most adjacent part, to a prescribed ratio or above of the magnitude of the maximum value. CONSTITUTION:A photosensitive drum 1, and a conductive sleeve being a developer carrying body having a magnetic field generating device on the back are provided. Also, on the surface of the sleeve 2, a developer layer in which a magnetic grain and a non-magnetic grain have been mixed is provided, a horizontal magnetic field of the magnetic field generating device of the back of the sleeve 2 is operated, and a bias voltage by a series power source of a DC 5 and an AC 6 is applied to a development interval. In this state, by forming a magnetic field distribution in the tangential direction so that two maximum values of the intensity of a magnetic field in the tangential direction on the surface of the sleeve 2 exist by inserting and holding sleeve 2 and the most adjacent part of the drum 1 between them, and magnitude of the maximum value of the intensity of a magnetic field in the tangential direction in the vicinity of the most adjacent part becomes >=90% of the maximum value, a uniform developer layer is formed at a developing position.
JP61309446A 1986-12-24 1986-12-24 Development method Expired - Fee Related JP2531651B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61309446A JP2531651B2 (en) 1986-12-24 1986-12-24 Development method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61309446A JP2531651B2 (en) 1986-12-24 1986-12-24 Development method

Publications (2)

Publication Number Publication Date
JPS63159868A true JPS63159868A (en) 1988-07-02
JP2531651B2 JP2531651B2 (en) 1996-09-04

Family

ID=17993097

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61309446A Expired - Fee Related JP2531651B2 (en) 1986-12-24 1986-12-24 Development method

Country Status (1)

Country Link
JP (1) JP2531651B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0258261U (en) * 1988-10-18 1990-04-26
US5101237A (en) * 1991-03-22 1992-03-31 International Business Machines Corporation Toner metering apparatus with pressure equalization
US5532804A (en) * 1993-07-16 1996-07-02 Fuji Xerox Co., Ltd. Device for developing an electrostatic image on an image member

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5495243A (en) * 1978-01-11 1979-07-27 Ricoh Co Ltd Magnetic brush developing device
JPS61160764A (en) * 1985-01-09 1986-07-21 Canon Inc Developing method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5495243A (en) * 1978-01-11 1979-07-27 Ricoh Co Ltd Magnetic brush developing device
JPS61160764A (en) * 1985-01-09 1986-07-21 Canon Inc Developing method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0258261U (en) * 1988-10-18 1990-04-26
US5101237A (en) * 1991-03-22 1992-03-31 International Business Machines Corporation Toner metering apparatus with pressure equalization
US5532804A (en) * 1993-07-16 1996-07-02 Fuji Xerox Co., Ltd. Device for developing an electrostatic image on an image member

Also Published As

Publication number Publication date
JP2531651B2 (en) 1996-09-04

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees